Parker VS68AB-4-6 Compression Tube Connector Brass

Product Description

The PARKER VS68AB-4-6 is a brass compression tube connector designed to create a secure, leak-resistant joint between a compression tube end and a male NPT pipe thread. Rated to 400 psi maximum working pressure and suitable for service across a temperature range of -65 to 250 degrees F, this fitting handles demanding fluid and pneumatic line applications. Constructed from brass, it meets D.O.T. FMVSS571.106 and SAE J246 standards, making it appropriate for both vehicular brake and hydraulic system work. The 3/8-18 NPTF thread provides a pressure-tight mechanical seal without thread sealant compounds.

This connector is used in hydraulic, pneumatic, and fluid transfer systems where a compression tube must transition to a male NPT threaded port. Typical applications include brake lines, fuel systems, air lines, and other fluid-handling assemblies in commercial vehicles, mobile equipment, and industrial machinery. The D.O.T. compliance designation makes it suitable for regulated vehicular applications. Licensed plumbers, hydraulic technicians, and fleet maintenance professionals install this fitting in both shop and field environments.

Key Features

• Brass construction provides corrosion resistance in fluid and pneumatic service
• 400 psi maximum working pressure rated for demanding hydraulic and pneumatic lines
• Operating temperature range of -65 to 250 degrees F suits a wide range of service conditions
• Compression x MNPT end connections allow transition from tube to threaded port without welding or flaring
• Compliant with D.O.T. FMVSS571.106 and SAE J246 standards for regulated vehicular brake system use
• 3/8-18 NPTF thread standard delivers a pressure-tight seal at the male pipe thread interface

Compatibility

Designed as an OEM-style replacement or service fitting for compression tube-to-male NPT connections in hydraulic, pneumatic, and vehicular fluid line assemblies requiring D.O.T. FMVSS571.106 and SAE J246 compliance.

Installation Notes

Installation should be performed by a qualified hydraulic technician or licensed tradesperson familiar with pressurized fluid systems. Depressurize and drain the system completely before removing or installing any fitting. Use appropriate tube preparation tools to ensure a clean, square tube cut and proper ferrule seating at the compression end. Follow NPTF thread engagement practices and verify the assembly is leak-free before returning the system to service.